Best Vitamin C Serum for Sensitive Skin That Will Not Sting
The best vitamin C serum for sensitive skin sits at 10 percent L-ascorbic acid, not 20. See what the pH really does and which gentle forms fall short.
Vitamins
The Best Vitamin C Serum for Glowing Skin, According to the Ingredient List
The best vitamin c serum for glowing skin is decided on the label: 10 to 20 percent L-ascorbic acid, pH under 3.5, with vitamin E and ferulic acid. Read it.
Best Vitamin D Supplement for Men: What to Check Before You Buy
Picking the best vitamin d supplement for men? Check the form, the dose against the 4,000 IU daily limit, and what the prostate research actually found.
The Best Vitamin D Supplement for Women, According to What Is on the Label
Choosing the best vitamin D supplement for women? Read the mcg figure, the 600 IU RDA and the 4,000 IU upper limit before you pay extra for a pink label.
Vitamin D2 Foods You Can Eat Instead of Popping a Pill
Vitamin D2 foods are a shorter list than you expect. See which mushrooms and fortified products carry ergocalciferol, with real IU figures per serving.